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denpristay [2]
2 years ago
11

Two straight lines have equations y = p x + 4 y = p x + 4 and p y = q x − 7 p y = q x − 7 , where p p and q q are constants. The

two lines meet at the point ( 3 , 1 ) ( 3 , 1 ) . What is the value of q q ?
Mathematics
1 answer:
kolbaska11 [484]2 years ago
6 0

Answer:

q = \frac{8}{3}

Step-by-step explanation:

The point of intersection (3, 1 ) is the solution to both equations

Using

y = qx - 7 and substituting x = 3, y = 1

1 = 3q - 7 ( add 7 to both sides )

8 = 3q ( divide both sides by 3 )

\frac{8}{3} = q

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